Jacob voegtle



(Nb Model.)

J. VO'BGTLB.

FUR'NAGE GRATB.

Y Patented Dee. 14, 1886.

INN/mln: W; l 5;@

UNITED STATES PATENT OFFICE..

JACOB VOEGTLE, OF INDIANAPOLIS, INDIANA, ASSIGNOR 'I`O OSCAR VOEGTLE, OF SAME PLACE.

FU RNACE-GRATE.

SPECIFICATION forming part of Letters Patent No. 354,523, dated December 14, 1886.

Application filed February 13, 1686. Serial No. 191,783. (No model.)

To aZ whom it 'may concern:

lBe it known that I, JACOB VOEGTLE, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Furnace-Grates, of which the following is a specification.

My invention relates to limprovements in grates such as are used to support the fuel in stoves, ranges, furnaces, and the like; and the objects of my improvements are, first, to supplyr a grate which is centrally opened and separated by the operation of an outside crank, the sections forming the grate sliding laterally under the lining of the fire-chamber, and thus insuring a central dump of the ashes and cin ders; second, to provide an efficient and easilymanipulated mechanism for shaking the grate; and, third, to facilitate the :removal and replacement of broken or damaged gratebars. I attain these objects by the mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a top view of the grate4 and its operating mechanism; Fig. 2, a vertical crosssection through the same on line a: x on Figs. l and 3; Fig. 3, a vertical longitudinal section on lines y y on Figs. 1 and 2; Fig. 4, a vertical cross-section to a larger scale on lines z c on Figs. l and 8.

Similar letters refer to similar parts th roughout the several views.

A is the frame which supports the furnace and the grate and its operating mechanism, and at the same time forms the casing of the ash-pit underneath the grate.

G G G are the bars forming the grate. These bars may be made in any numberand shape desired,excepting thatthe ends ggarcto beformed in such a manner that the line of contact between the bars and their supports S S is onor nearly on a line with the central axis of the bars, or, in other Words, that the bars G G will pivotally rock on their ends g g. The bars rest loosely with their wedgeshaped ends g g on the bearings or forked shoulders S S. These shoulders S S are screwed or bolted to the sides of the sliding frames or carriages E and E', that face toward the fire chamber.

If it becomes desirable to remove orreplace one of the grate-bars, all that is necessary to do is to unscrew or remove the supportingshoulder S at one end of the bar. The bar will then drop down, and a new one can easily be raised into its place and secured by replacing the supporting-shoulder.

To accomplish the easy replacement of the grate-bars,only one end of each baris required to rest on such a shoulder, S, secured to the side of one sliding frame, while the other end may lie in a notch or recess directly on top of the other sliding frame, as shown on one-half 0f Fig. l.

The frames orcarriages E E and E E are supported by and slide laterally on the rails B B, that extend in pairs across from one side of the casing A to the other, thus stiffening the casing and forming tracks for the fore andV rear carriages, E EE E. These carriages and the sections of the grate that are supported by the same are moved from and to underneath of the center ofthe fire-chamber by the following mechanism:

At one side ofthe grate a shaft, C, extends longitudinally through the entire depth of the casing A, being supported by the walls of said casing and by the rails B B. Firmly xed upon this shaft C, in the center of each pair of the rails B B, are the sprocket or chain wheels c and c', that operate the endless chains H and I-I. These chains H and H pass over sprocket- 'wheels ld and d', corresponding to the wheels c and c', and journaled at the other side of the grate between the rails B B. The chains H and H are fastened to the upper side of the carriages E E and to the lower side of the carriages E E', as shown in Fig. 2, so that by turning the crank N on the outside of the shait Y O both carriages E and E are moved in opposite directions, thus enabling me to centrally open the grate by sliding the grate-sections sidewise under the furnace-linings L L.

The device for shaking the grate-barsis constructed in the following manner: To the top of the fore carriages, E and E', are held the shaking-frames F F by means of the looltsf2 fz,-

that pass through the vertical cross-slots f f in the frames F F, and are firmly secured to the supportingframes E and E', the slots f f allowing a limited lateral movement of the frames F F in relation to the frames E and E. The shaking-frames F F are shaped and conroo structed in such a manner as to allow the chain H to pass between the frames F F and the top of the frames E and E. The frames F are superposed upon the carriages E and E', and have notches f f, which correspond with the shoulders or bearings S S, that support the wedge-shaped ends g g of the grate-bars G G. The grate-bars are Wide enough so that While resting in the bearings S 'they extend up into the notches in the. frames F. To the top of the frames F are secured the rack-rails rr. A central crank-shaft, I, provided with a cog-wheel, z', operates the cog-Wheels jj, situated at each side of the Wheel i. These cog-Wheels jj engage into the rack-rails r r, so that by rocking the shaft I the frames F F are laterally shaken, which movement is transferred to the gratebarsG G. The cog-wheels ijj are held in their o, proper relative places to each other by their shafts I J J, that are supported by the frame A a, the shafts J J being loosely mounted in their bearings, so that they can be drawn out and the wheels jj can be disengaged with the central wheel, z', which always keeps its position. This construction enables me to shake either the whole grate or its right or left section at a time, and also allows the bringing together or moving apart of the carriages E F and E F, for by having, for instance, only the left cogwheel j engaged with the central wheel, z', the operation of the shaft I shakes only the left section of the grate, and to move the gratesections apart or together one of the cog-wheels j must be disengaged with the central wheel, z.

To prevent the shaking oi the frames Fand the grate-bars G from affecting the frames E F/-that is, from causing the grate-sections to slide apart-I secure on the outside of the casing A, to the shaft C, a ratchet-wheel, O, into which engages the click I). Thus when the grate-sections are in position under the firechamber the shaking of the grate-bars will not open the grate, the locking device O P preventing a backward motion of the shaft C.

Instead of the ratchet-Wheel and click, any other suitable locking device can be used.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l; In a grate for.furnaces or the like, the combination of the frame or casing A, the cross-rails B B, the carriages or frames E E, supported on said rails B B, the grate-bars G G, supported by the carriages E E-, the revolving shaft C, the chain-wheels c and c', rmly fixed upon the shaft C, the supportingwhcels d and ci, and the chains H and H', all substantially arranged as described, and for the purpose of centrally opening and closing the grate.

2. A grate for furnaces or the like, having the casing or frame A, the cross-rails B B, the frames or carriages E E, supported yon said rails B B, the removable forked shoulders or bearings dS S, secured to the frames E E', as described, the grate-bars wedge-shaped ends g g,

G G, having the and resting with these ends in the removable bearings S S, all constructed as described, and for the purpose specified.

3. In a grate for furnaces or the like, the combination, with the frame or casing A, the furnace-lining L, and the grate-bars G G, of the cross-tracks B B, the frames or carriages E and E', supported and laterally sliding on the rails B B, the removable shoulders or bearings S S, secured tothe frames E and E, and supporting the grate-bars G G, in the manner described, the shaft C, the' chain- Wheels c c d d', and the chains H and H', arA ranged for the purpose of closing the grate or removing the grate-sections under the lire-lining L, and a device for locking the grate-sections, substantially as described and specified.

4. In a grate for furnaces or the like, the combination, with the frame or casing A, the cross-bars B B, the-frames or carriages E E', the shoulders or bearings S S, and the gratebars G G, all constructed as described, of the shaking-frames FF, superposed upon the car' `riages E E and held to the same by means of the boltsfi]c2 and the slots ff, the notches fj' in the frames F F engaging with the wedgeashaped ends g g of the gratebars G G, and the crankshaft I, the cog-wheel z', the shafts J J, the cog-Wheels jj, and the rackrails r r, forming means to shake the graten bars G G, all constructed as described and specied.

5. In a grate for furnaces or the like, the combination, with the casing A, the crosstracks B B, the frames or carriages E E', supported on said tracks B B, the grate-bars G G, supported on the carriages E E', the shaft C, chainwheels c c and d d', and chains H and H, forming means for centrally opening and closing the grate, of the shaking-frames F F, su` perposed upon the carriages E E,and engaging with the ends of the grate-bars G G, as described, and the crank-shaft I, cog-wheel z', shafts J J, cog-wheels jj, and rackfrails r r, forming means to shake the grate-bars G G, all constructed as described and specified.

6. In a grate for furnaces or the like, the combination, with the casing A, the gratebars G G, the frames E E, and the shoulders S S, supporting the grate-bars G G, as described, of the shaking-frames F F, connected to the frames E E by means of the slotsff and the boltsf2f2, and engaging with the ends g g of the grate-bars G G, the rack-rails r r on said frames F F, the fixed shaft and cog-Wheel I i, and the sliding shafts and cog-wheels J J j j, constructed as described, and for the purpose of enabling the operator to shake either the whole grate or parts of it.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JACOB VOEG'ILE.

Witnesses:

Tnnononn LANGnEiN, BERNE. J. Lizins. 

